| article html file updated | 16 June 2015 14:24 CEST | Update | https://www.mdpi.com/2072-6694/3/1/789 |
| article html file updated | 4 September 2013 15:01 CEST | Update | - |
| article xml file uploaded | 4 September 2013 15:01 CEST | Update | https://www.mdpi.com/2072-6694/3/1/789/xml |
| article html file updated | 29 August 2013 10:38 CEST | Update | - |
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| article html file updated | 27 August 2013 11:49 CEST | Update | - |
| article xml file uploaded | 27 August 2013 11:49 CEST | Original file | - |
| article html file updated | 6 February 2013 20:00 CET | Update | - |
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| article html file updated | 26 January 2013 01:14 CET | Update | - |
| article html file updated | 22 January 2013 11:07 CET | Original file | - |
